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Jan 6, 2018 | 11:04 PM

1954

Thread Starter

Instructor

Joined: Dec 2007

Posts: 129

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From: Fountain Hills AZ

Top end

I'm sure this question has been addressed in the past, however what's the real top end of a basic 2015 C7 automatic? My Goggle research has radical opinions between 175 and 193.

Jan 6, 2018 | 11:37 PM

ElGreco53

Racer

Joined: Jun 2017

Posts: 258

Likes: 105

From: Corvallis, Oregon

You might get radical opinions here too, I'm just sayin'!

Jan 6, 2018 | 11:59 PM

jamesw95

Pro

Joined: Jul 2011

Posts: 506

Likes: 8

From: Texas

I think it is 181 for a Z51

Jan 7, 2018 | 12:01 AM

fsvoboda

Melting Slicks

Joined: Sep 2013

Posts: 3,119

Likes: 799

From: East Lansing, MI

Quote:

Originally Posted by 1954

I'm sure this question has been addressed in the past, however what's the real top end of a basic 2015 C7 automatic? My Goggle research has radical opinions between 175 and 193.

There are practical limits to answering this question, I think.

The problem is, where are you going to find a long enough straight where you won't risk killing yourself or someone else in order to get to an ultimate top speed? Bonneville Salt Flats in a dry year would be my best guess. Lacking that, you're probably looking at a calculation based on power, gearing, and drag. I'm sure that Chevy knows quite accurately, whether by calculation or actual test.

There have been other discussions here that suggest speeds as high as 194.

Jan 7, 2018 | 12:23 AM

LT4CMG

Le Mans Master

Joined: Mar 2016

Posts: 9,175

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From: 2019 CMG Z06/ZR1

Recent YouTube vid in Km seems to go at least to 188mph, but looks like there was more room to go.

Jan 7, 2018 | 01:58 AM

joemessman

Le Mans Master

Joined: Nov 2015

Posts: 7,382

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From: Lake Havasu City Arizona

188 is the top according to GM for that particular model.

Jan 7, 2018 | 05:54 PM

Avanti

Race Director

Joined: Mar 2001

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From: Bonneville Salt Flats

I'm trying to find where I believe that I saw 186 listed in something semi-official but haven't yet. It also listed 0-60 times, as well... both for the base car.

Btw, B'ville is hardly ideal for normally aspirated top-end runs because of the elevation of 4200 feet. I've played there for 30 years, driven 4 cars, but never a nonblown for that reason.

Jan 7, 2018 | 07:50 PM